4 x Bass Guitar string back Mounting ferrules SF6 SF7 SF8

YOU ARE BUYING A SET OF 4 BASS BACK MOUNTING FERRULES
PLEASE STATE WHICH MODEL AND WHICH COLOUR YOU WOULD LIKE IN THE DROP DOWN MENU

I can make sets of 5 , 6 or 8 if you want extra
No6. Smooth, short barrel. Height 14mm, Stem diameter 9.5mm, Hole diameter 8mm.
No7. Serrated barrel. Height 14mm, Stem diameter 9.5mm, Hole diameter 8mm.
No8. Smooth, longer barrel. Height 25.5mm, Stem diameter 9.5mm, Hole diameter 8mm.